Generally, brake pads need to be replaced after about 50,000 miles. Some need to be replaced after 25,000, while others can last for 70,000 miles. To get a more accurate number for your car's specific needs, consult the owner's manual. Other warning signs communicate that the brake pads are wearing out, including:

Observe the thickness of the brake pads. Under normal circumstances, the thickness of the new brake pads is about 2.5 cm. When the thickness of the brake pads becomes smaller, about 0.5 cm, the brake pads need to be replaced.

Listen to the sound. Because the brake pads will rub against the brake system when braking, so at this time, you can judge whether the brake system is normal by listening to the sound of stepping on the brakes. If there is an unexpected noise, the brake pads need to be checked and replaced.

Feeling the braking force. If the brakes feel very hard, it may be that the brake pads have basically lost friction and must be replaced at this time, otherwise a serious accident will occur.

This method is relatively abstract and may be difficult to grasp by feeling, so it is very important to develop good self-examination habits. In addition, the reduced braking effect will lead to an increase in brake oil consumption, so it is important to check the brake fluid when replacing the brake pads.